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      <a href="/2016/06/19/drag-and-drop/" title="做一个拖放功能的自定义页面" itemprop="url">做一个拖放功能的自定义页面</a>
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      <a href="https://godbasin.github.io" title="被删">被删</a>
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    <time datetime="2016-06-19T07:42:49.000Z" itemprop="datePublished">2016-06-19</time>
    更新日期:<time datetime="2018-08-18T12:58:12.284Z" itemprop="dateModified">2018-08-18</time>
    
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			<strong class="toc-title">文章目录</strong>
		<ol class="toc"><li class="toc-item toc-level-2"><a class="toc-link" href="#基本页面搭建"><span class="toc-number">1.</span> <span class="toc-text">基本页面搭建</span></a></li><li class="toc-item toc-level-2"><a class="toc-link" href="#绑定鼠标左键按下事件"><span class="toc-number">2.</span> <span class="toc-text">绑定鼠标左键按下事件</span></a><ol class="toc-child"><li class="toc-item toc-level-3"><a class="toc-link" href="#需要进行绑定的对象"><span class="toc-number">2.1.</span> <span class="toc-text">需要进行绑定的对象</span></a></li><li class="toc-item toc-level-3"><a class="toc-link" href="#点击对象后进行处理"><span class="toc-number">2.2.</span> <span class="toc-text">点击对象后进行处理</span></a></li><li class="toc-item toc-level-3"><a class="toc-link" href="#若对象位于页面效果内，进行相关处理"><span class="toc-number">2.3.</span> <span class="toc-text">若对象位于页面效果内，进行相关处理</span></a></li></ol></li><li class="toc-item toc-level-2"><a class="toc-link" href="#定位当前位置是否有特定元素"><span class="toc-number">3.</span> <span class="toc-text">定位当前位置是否有特定元素</span></a></li><li class="toc-item toc-level-2"><a class="toc-link" href="#绑定鼠标移动事件"><span class="toc-number">4.</span> <span class="toc-text">绑定鼠标移动事件</span></a><ol class="toc-child"><li class="toc-item toc-level-3"><a class="toc-link" href="#需要进行的判断"><span class="toc-number">4.1.</span> <span class="toc-text">需要进行的判断</span></a></li></ol></li><li class="toc-item toc-level-2"><a class="toc-link" href="#绑定鼠标左键松开事件"><span class="toc-number">5.</span> <span class="toc-text">绑定鼠标左键松开事件</span></a><ol class="toc-child"><li class="toc-item toc-level-3"><a class="toc-link" href="#效果事件"><span class="toc-number">5.1.</span> <span class="toc-text">效果事件</span></a></li><li class="toc-item toc-level-3"><a class="toc-link" href="#需要进行的判断-1"><span class="toc-number">5.2.</span> <span class="toc-text">需要进行的判断</span></a></li></ol></li><li class="toc-item toc-level-2"><a class="toc-link" href="#完善后续处理"><span class="toc-number">6.</span> <span class="toc-text">完善后续处理</span></a></li><li class="toc-item toc-level-2"><a class="toc-link" href="#结束语"><span class="toc-number">7.</span> <span class="toc-text">结束语</span></a></li></ol>
		</div>
		
		<p>以前写过一个拖放功能的页面，用来搭建自定义移动端页面。本文介绍实现方法。<br><a id="more"></a></p>
<p>项目放在github上，有兴趣的小伙伴可以下载玩玩看<br><a href="https://github.com/godbasin/godbasin.github.io/tree/blog-codes/DD-custom-pages" target="_blank" rel="external">DD-custom-pages</a><br>已经没有在维护了，也基本没优化，但还是挺有意思的一个项目</p>
<p>最终效果图如下<a href="http://o907xb1mi.bkt.clouddn.com/index.html" target="_blank" rel="external">点击查看页面</a><br><img src="https://github-imglib-1255459943.cos.ap-chengdu.myqcloud.com/dd_custom_pages.png" alt="image"></p>
<h2 id="基本页面搭建"><a href="#基本页面搭建" class="headerlink" title="基本页面搭建"></a>基本页面搭建</h2><hr>
<p>首先是最基本的页面搭建</p>
<ul>
<li>三个基本布局对象<ul>
<li>1.左侧布局列表</li>
<li>2.中间页面效果</li>
<li>3.右侧控件列表</li>
</ul>
</li>
<li>对象的事件处理<br>对象基本事件的编写<ul>
<li>1.布局切换，以及自定义布局事件</li>
<li>2.控件切换，选择等</li>
</ul>
</li>
</ul>
<p>样式布局什么的，这里就略过啦，具体可参考<a href="https://github.com/godbasin/DD-custom-pages" target="_blank" rel="external">项目</a></p>
<h2 id="绑定鼠标左键按下事件"><a href="#绑定鼠标左键按下事件" class="headerlink" title="绑定鼠标左键按下事件"></a>绑定鼠标左键按下事件</h2><hr>
<h3 id="需要进行绑定的对象"><a href="#需要进行绑定的对象" class="headerlink" title="需要进行绑定的对象"></a>需要进行绑定的对象</h3><ul>
<li>需要进行鼠标左键按下绑定的对象有两种：布局和控件</li>
<li>布局分为两种：左侧布局列表获取、中间页面效果获取的布局，class为fix-layout和float-layout区分</li>
<li><p>控件同理: 右侧控件列表获取、中间页面效果获取的控件，class为fix-target和float-target区分</p>
</li>
<li><p>全局绑定鼠标鼠标左键按下事件<br>由于该项目中鼠标事件几乎是最主要事件，因此采用全局绑定</p>
</li>
</ul>
<h3 id="点击对象后进行处理"><a href="#点击对象后进行处理" class="headerlink" title="点击对象后进行处理"></a>点击对象后进行处理</h3><ul>
<li>设置拖动标志true，此时可进行鼠标移动事件的处理，后面会提及</li>
<li>这里采用复制元素的方式，jQuery实现，$().clone()复制元素对象</li>
<li>复制对象后，设置对象位置、大小等，这里设置拖动时将元素宽度减小为一般</li>
</ul>
<h3 id="若对象位于页面效果内，进行相关处理"><a href="#若对象位于页面效果内，进行相关处理" class="headerlink" title="若对象位于页面效果内，进行相关处理"></a>若对象位于页面效果内，进行相关处理</h3><ul>
<li>若是对象为布局，则插入布局位置效果</li>
</ul>
<figure class="highlight javascript"><table><tr><td class="gutter"><pre><div class="line">1</div><div class="line">2</div><div class="line">3</div><div class="line">4</div><div class="line">5</div><div class="line">6</div><div class="line">7</div><div class="line">8</div><div class="line">9</div><div class="line">10</div><div class="line">11</div><div class="line">12</div><div class="line">13</div><div class="line">14</div><div class="line">15</div><div class="line">16</div><div class="line">17</div><div class="line">18</div><div class="line">19</div><div class="line">20</div><div class="line">21</div><div class="line">22</div><div class="line">23</div><div class="line">24</div><div class="line">25</div><div class="line">26</div><div class="line">27</div><div class="line">28</div><div class="line">29</div><div class="line">30</div><div class="line">31</div><div class="line">32</div><div class="line">33</div><div class="line">34</div><div class="line">35</div><div class="line">36</div><div class="line">37</div><div class="line">38</div><div class="line">39</div><div class="line">40</div><div class="line">41</div><div class="line">42</div><div class="line">43</div><div class="line">44</div><div class="line">45</div><div class="line">46</div><div class="line">47</div><div class="line">48</div><div class="line">49</div><div class="line">50</div><div class="line">51</div><div class="line">52</div><div class="line">53</div><div class="line">54</div><div class="line">55</div><div class="line">56</div><div class="line">57</div><div class="line">58</div><div class="line">59</div><div class="line">60</div><div class="line">61</div><div class="line">62</div><div class="line">63</div><div class="line">64</div><div class="line">65</div><div class="line">66</div></pre></td><td class="code"><pre><div class="line"><span class="comment">//绑定事件，这里使用了jQuery</span></div><div class="line">$(<span class="built_in">document</span>).on(<span class="string">'mousedown'</span>, mouseDown);</div><div class="line"><span class="function"><span class="keyword">function</span> <span class="title">mouseDown</span>(<span class="params">e</span>) </span>&#123;</div><div class="line">  <span class="comment">//获取左键点击事件</span></div><div class="line">  <span class="keyword">if</span> (e.which == <span class="number">1</span>) &#123;</div><div class="line">    <span class="comment">//定位当前事件位置，并取出相关元素</span></div><div class="line">    position_target(e);</div><div class="line">    <span class="comment">//处理左侧布局列表获取的布局元素事件</span></div><div class="line">    <span class="keyword">if</span> ($(target).attr(<span class="string">'class'</span>) == <span class="string">"fix-layout"</span>) &#123;</div><div class="line">      dragging = <span class="literal">true</span>; <span class="comment">//设置拖动标志</span></div><div class="line">      target = $(target).clone(); <span class="comment">//复制元素</span></div><div class="line">      $(target).removeClass(<span class="string">"fix-layout"</span>).addClass(<span class="string">"move-layout"</span>); <span class="comment">//拖动时元素样式</span></div><div class="line">      $(<span class="string">".container"</span>).append(target); <span class="comment">//将复制的元素添加到页面</span></div><div class="line">    &#125;</div><div class="line">    <span class="comment">//处理中间布局列表获取的布局元素事件</span></div><div class="line">    <span class="keyword">if</span> ($(target).attr(<span class="string">'class'</span>) == <span class="string">"float-layout"</span>) &#123;</div><div class="line">      dragging = <span class="literal">true</span>; <span class="comment">//设置拖动标志</span></div><div class="line">      $(target).removeClass(<span class="string">"float-layout"</span>).addClass(<span class="string">"move-layout"</span>); <span class="comment">//拖动时元素样式</span></div><div class="line">      $(<span class="string">".container"</span>).append(target); <span class="comment">//将元素移动到页面</span></div><div class="line">    &#125;</div><div class="line">    <span class="comment">//处理右侧控件列表获取的控件元素事件</span></div><div class="line">    <span class="keyword">if</span> ($(target).attr(<span class="string">'class'</span>) == <span class="string">"fix-target"</span>) &#123;</div><div class="line">      dragging = <span class="literal">true</span>; <span class="comment">//设置拖动标志</span></div><div class="line">      target = $(target).clone(); <span class="comment">//复制元素</span></div><div class="line">      $(target).removeClass(<span class="string">"fix-target"</span>).addClass(<span class="string">"move-target"</span>); <span class="comment">//拖动时元素样式</span></div><div class="line">      $(<span class="string">".container"</span>).append(target); <span class="comment">//将复制的元素添加到页面</span></div><div class="line">    &#125;</div><div class="line">    <span class="comment">//处理中间布局列表获取的控件元素事件</span></div><div class="line">    <span class="keyword">if</span> ($(target).attr(<span class="string">'class'</span>) == <span class="string">"float-target"</span>) &#123;</div><div class="line">      dragging = <span class="literal">true</span>; <span class="comment">//设置拖动标志</span></div><div class="line">      $(target).removeClass(<span class="string">"float-target"</span>).addClass(<span class="string">"move-target"</span>); <span class="comment">//拖动时元素样式</span></div><div class="line">      $(<span class="string">".container"</span>).append(target); <span class="comment">//将元素移动到页面</span></div><div class="line">      $(target).children(<span class="string">".header, .footer, .nav, .content, .slider-7, .slider-8, .slider-9"</span>).css(<span class="string">"height"</span>, <span class="string">"auto"</span>); <span class="comment">//拖动时元素内层控件样式</span></div><div class="line">      $(target).children(<span class="string">".listview-l"</span>).css(<span class="string">"height"</span>, <span class="string">"100px"</span>); <span class="comment">//拖动时元素内层控件样式</span></div><div class="line">      $(target).children(<span class="string">".listview-s"</span>).css(<span class="string">"height"</span>, <span class="string">"50px"</span>); <span class="comment">//拖动时元素内层控件样式</span></div><div class="line">    &#125;</div><div class="line">    <span class="comment">//判断是否有元素在拖动，将元素位置设置在当前鼠标位置</span></div><div class="line">    <span class="keyword">if</span> (dragging) &#123;</div><div class="line">      <span class="keyword">var</span> oX = getMousePos(e).x - $(target).width() / <span class="number">2</span>;</div><div class="line">      <span class="keyword">var</span> oY = getMousePos(e).y - $(target).height() / <span class="number">2</span>;</div><div class="line">      $(target).css(&#123;</div><div class="line">        <span class="string">"left"</span>: oX + <span class="string">"px"</span>,</div><div class="line">        <span class="string">"top"</span>: oY + <span class="string">"px"</span></div><div class="line">      &#125;);</div><div class="line">    &#125;</div><div class="line">    <span class="comment">//定位当前事件位置，判断是否在合适的位置</span></div><div class="line">    <span class="comment">//若当前元素为布局，且位置为页面效果内，则添加提示，元素放置的位置</span></div><div class="line">    position_box(e);</div><div class="line">    <span class="keyword">if</span> ($(box).attr(<span class="string">'id'</span>) == <span class="string">"box"</span>) &#123;</div><div class="line">      <span class="keyword">if</span> ($(target).attr(<span class="string">'class'</span>) == <span class="string">"move-layout"</span> || $(target).attr(<span class="string">'class'</span>) == <span class="string">"move-layout-over"</span>) &#123;</div><div class="line">        $(target).removeClass(<span class="string">"move-layout"</span>).addClass(<span class="string">"move-layout-over"</span>);</div><div class="line">        <span class="keyword">if</span> (dropping == <span class="literal">false</span>) &#123;</div><div class="line">          drop = $(<span class="string">"&lt;div class='drop-layout'&gt;&lt;/div&gt;"</span>);</div><div class="line">          moveDrop();</div><div class="line">          $(<span class="string">"#box-content"</span>).append(drop);</div><div class="line">          dropping = <span class="literal">true</span>;</div><div class="line">        &#125; <span class="keyword">else</span> &#123;</div><div class="line">          $(drop).remove();</div><div class="line">          moveDrop();</div><div class="line">          $(<span class="string">"#box-content"</span>).append(drop);</div><div class="line">        &#125;</div><div class="line">      &#125;</div><div class="line">    &#125;</div><div class="line">  &#125;</div><div class="line">  <span class="keyword">return</span> <span class="literal">false</span>;</div><div class="line">&#125;</div></pre></td></tr></table></figure>
<h2 id="定位当前位置是否有特定元素"><a href="#定位当前位置是否有特定元素" class="headerlink" title="定位当前位置是否有特定元素"></a>定位当前位置是否有特定元素</h2><hr>
<ul>
<li><p>使用鼠标定位获取相关布局或者控件对象<br>这里可参考上一篇文章：<a href="/2016/06/19/position-object/">《js判断某个位置是否特定元素》</a></p>
</li>
<li><p>获取当前鼠标位置</p>
<figure class="highlight javascript"><table><tr><td class="gutter"><pre><div class="line">1</div><div class="line">2</div><div class="line">3</div><div class="line">4</div><div class="line">5</div><div class="line">6</div><div class="line">7</div><div class="line">8</div><div class="line">9</div><div class="line">10</div><div class="line">11</div></pre></td><td class="code"><pre><div class="line"><span class="function"><span class="keyword">function</span> <span class="title">getMousePos</span>(<span class="params">event</span>) </span>&#123;</div><div class="line">  <span class="keyword">var</span> e = event || <span class="built_in">window</span>.event;</div><div class="line">  <span class="keyword">var</span> scrollX = <span class="built_in">document</span>.documentElement.scrollLeft || <span class="built_in">document</span>.body.scrollLeft;</div><div class="line">  <span class="keyword">var</span> scrollY = <span class="built_in">document</span>.documentElement.scrollTop || <span class="built_in">document</span>.body.scrollTop;</div><div class="line">  <span class="keyword">var</span> x = e.pageX || e.clientX + scrollX;</div><div class="line">  <span class="keyword">var</span> y = e.pageY || e.clientY + scrollY;</div><div class="line">  <span class="keyword">return</span> &#123;</div><div class="line">    <span class="string">'x'</span>: x,</div><div class="line">    <span class="string">'y'</span>: y</div><div class="line">  &#125;;</div><div class="line">&#125;</div></pre></td></tr></table></figure>
</li>
<li><p>定位当前位置是否有布局或者控件对象position_target</p>
<figure class="highlight javascript"><table><tr><td class="gutter"><pre><div class="line">1</div><div class="line">2</div><div class="line">3</div><div class="line">4</div><div class="line">5</div><div class="line">6</div><div class="line">7</div><div class="line">8</div><div class="line">9</div><div class="line">10</div><div class="line">11</div><div class="line">12</div><div class="line">13</div><div class="line">14</div><div class="line">15</div></pre></td><td class="code"><pre><div class="line"><span class="function"><span class="keyword">function</span> <span class="title">position_target</span>(<span class="params">e</span>) </span>&#123;</div><div class="line">  <span class="keyword">var</span> e = e || <span class="built_in">window</span>.event;</div><div class="line">  <span class="keyword">var</span> scrollX = <span class="built_in">document</span>.documentElement.scrollLeft || <span class="built_in">document</span>.body.scrollLeft;</div><div class="line">  <span class="keyword">var</span> scrollY = <span class="built_in">document</span>.documentElement.scrollTop || <span class="built_in">document</span>.body.scrollTop;</div><div class="line">  <span class="keyword">var</span> eventX = e.pageX - scrollX || e.clientX;</div><div class="line">  <span class="keyword">var</span> eventY = e.pageY - scrollY || e.clientY;</div><div class="line">  target = <span class="built_in">document</span>.elementFromPoint(eventX, eventY);</div><div class="line">  target = fnGetTable(target);</div><div class="line">&#125;</div><div class="line"><span class="function"><span class="keyword">function</span> <span class="title">fnGetTable</span>(<span class="params">oEl</span>) </span>&#123;</div><div class="line">  <span class="keyword">while</span> (<span class="literal">null</span> != oEl &amp;&amp; $(oEl).attr(<span class="string">'class'</span>) != <span class="string">"fix-target"</span> &amp;&amp; $(oEl).attr(<span class="string">'id'</span>) != <span class="string">"set-layout"</span> &amp;&amp; $(oEl).attr(<span class="string">'id'</span>) != <span class="string">"save-page"</span> &amp;&amp; $(oEl).attr(<span class="string">'class'</span>) != <span class="string">"box-footer"</span> &amp;&amp; $(oEl).attr(<span class="string">'class'</span>) != <span class="string">"to-edit"</span> &amp;&amp; $(oEl).attr(<span class="string">'class'</span>) != <span class="string">"edit"</span> &amp;&amp; $(oEl).attr(<span class="string">'class'</span>) != <span class="string">"container"</span> &amp;&amp; $(oEl).attr(<span class="string">'class'</span>) != <span class="string">"float-target"</span> &amp;&amp; $(oEl).attr(<span class="string">'class'</span>) != <span class="string">"fix-layout"</span> &amp;&amp; $(oEl).attr(<span class="string">'class'</span>) != <span class="string">"float-layout"</span>) &#123;</div><div class="line">    oEl = oEl.parentElement;</div><div class="line">  &#125;</div><div class="line">  <span class="keyword">return</span> oEl;</div><div class="line">&#125;</div></pre></td></tr></table></figure>
</li>
<li><p>定位当前位置是否有在页面效果的布局里position_target</p>
<figure class="highlight javascript"><table><tr><td class="gutter"><pre><div class="line">1</div><div class="line">2</div><div class="line">3</div><div class="line">4</div><div class="line">5</div><div class="line">6</div><div class="line">7</div><div class="line">8</div><div class="line">9</div><div class="line">10</div><div class="line">11</div><div class="line">12</div><div class="line">13</div><div class="line">14</div><div class="line">15</div></pre></td><td class="code"><pre><div class="line"><span class="function"><span class="keyword">function</span> <span class="title">position_box</span>(<span class="params">e</span>) </span>&#123;</div><div class="line">  <span class="keyword">var</span> e = e || <span class="built_in">window</span>.event;</div><div class="line">  <span class="keyword">var</span> scrollX = <span class="built_in">document</span>.documentElement.scrollLeft || <span class="built_in">document</span>.body.scrollLeft;</div><div class="line">  <span class="keyword">var</span> scrollY = <span class="built_in">document</span>.documentElement.scrollTop || <span class="built_in">document</span>.body.scrollTop;</div><div class="line">  <span class="keyword">var</span> eventX = e.pageX - scrollX || e.clientX;</div><div class="line">  <span class="keyword">var</span> eventY = $(target).offset().top - <span class="number">1</span> - scrollY;</div><div class="line">  box = <span class="built_in">document</span>.elementFromPoint(eventX, eventY);</div><div class="line">  box = fnGetTable2(box);</div><div class="line">&#125;</div><div class="line"><span class="function"><span class="keyword">function</span> <span class="title">fnGetTable2</span>(<span class="params">oEl</span>) </span>&#123;</div><div class="line">  <span class="keyword">while</span> (<span class="literal">null</span> != oEl &amp;&amp; $(oEl).attr(<span class="string">'id'</span>) != <span class="string">"box"</span> &amp;&amp; $(oEl).attr(<span class="string">'class'</span>) != <span class="string">"container"</span> &amp;&amp; $(oEl).attr(<span class="string">'data-type'</span>) != <span class="string">"layout"</span>) &#123;</div><div class="line">    oEl = oEl.parentElement;</div><div class="line">  &#125;</div><div class="line">  <span class="keyword">return</span> oEl;</div><div class="line">&#125;</div></pre></td></tr></table></figure>
</li>
</ul>
<h2 id="绑定鼠标移动事件"><a href="#绑定鼠标移动事件" class="headerlink" title="绑定鼠标移动事件"></a>绑定鼠标移动事件</h2><hr>
<h3 id="需要进行的判断"><a href="#需要进行的判断" class="headerlink" title="需要进行的判断"></a>需要进行的判断</h3><ul>
<li>是否有正在拖动的布局或者控件</li>
<li>当前鼠标位置是否在页面效果内，添加布局示意（蓝色框框表示即将添加布局的位置）</li>
<li>当前鼠标位置是否在页面效果内的某个布局上方，在相应位置添加布局示意</li>
<li>全局绑定鼠标移动事件</li>
</ul>
<figure class="highlight javascript"><table><tr><td class="gutter"><pre><div class="line">1</div><div class="line">2</div><div class="line">3</div><div class="line">4</div><div class="line">5</div><div class="line">6</div><div class="line">7</div><div class="line">8</div><div class="line">9</div><div class="line">10</div><div class="line">11</div><div class="line">12</div><div class="line">13</div><div class="line">14</div><div class="line">15</div><div class="line">16</div><div class="line">17</div><div class="line">18</div><div class="line">19</div><div class="line">20</div><div class="line">21</div><div class="line">22</div><div class="line">23</div><div class="line">24</div><div class="line">25</div><div class="line">26</div><div class="line">27</div><div class="line">28</div><div class="line">29</div><div class="line">30</div><div class="line">31</div><div class="line">32</div><div class="line">33</div><div class="line">34</div><div class="line">35</div><div class="line">36</div><div class="line">37</div><div class="line">38</div><div class="line">39</div><div class="line">40</div><div class="line">41</div><div class="line">42</div><div class="line">43</div><div class="line">44</div><div class="line">45</div><div class="line">46</div><div class="line">47</div><div class="line">48</div><div class="line">49</div><div class="line">50</div><div class="line">51</div><div class="line">52</div><div class="line">53</div><div class="line">54</div><div class="line">55</div></pre></td><td class="code"><pre><div class="line">$(<span class="built_in">document</span>).mousemove(<span class="function"><span class="keyword">function</span>(<span class="params">e</span>) </span>&#123;</div><div class="line">  <span class="comment">//判断是否有正在拖动的布局或者控件</span></div><div class="line">  <span class="keyword">if</span> (dragging) &#123;</div><div class="line">    <span class="comment">//正在拖动的对象位置跟随鼠标移动</span></div><div class="line">    <span class="keyword">var</span> oX = getMousePos(e).x - $(target).width() / <span class="number">2</span>;</div><div class="line">    <span class="keyword">var</span> oY = getMousePos(e).y - $(target).height() / <span class="number">2</span>;</div><div class="line">    $(target).css(&#123;</div><div class="line">      <span class="string">"left"</span>: oX + <span class="string">"px"</span>,</div><div class="line">      <span class="string">"top"</span>: oY + <span class="string">"px"</span></div><div class="line">    &#125;);</div><div class="line">    <span class="comment">//定位当前事件位置</span></div><div class="line">    position_box(e);</div><div class="line">    <span class="comment">//判断当前位置在页面效果内，且在某个布局上方，布局示意添加在当前布局前方</span></div><div class="line">    <span class="keyword">if</span> ($(box).attr(<span class="string">'data-type'</span>) == <span class="string">"layout"</span> &amp;&amp; $(box).parent().attr(<span class="string">'class'</span>) == <span class="string">"float-layout"</span>) &#123;</div><div class="line">      <span class="keyword">if</span> ($(target).attr(<span class="string">'class'</span>) == <span class="string">"move-layout"</span> || $(target).attr(<span class="string">'class'</span>) == <span class="string">"move-layout-over"</span>) &#123;</div><div class="line">        $(target).removeClass(<span class="string">"move-layout"</span>).addClass(<span class="string">"move-layout-over"</span>);</div><div class="line">        <span class="keyword">if</span> (dropping == <span class="literal">false</span>) &#123;</div><div class="line">          drop = $(<span class="string">"&lt;div class='drop-layout'&gt;&lt;/div&gt;"</span>);</div><div class="line">          moveDrop();</div><div class="line">          $($(box).parent()).before(drop);</div><div class="line">          dropping = <span class="literal">true</span>;</div><div class="line">        &#125; <span class="keyword">else</span> &#123;</div><div class="line">          $(drop).remove();</div><div class="line">          moveDrop();</div><div class="line">          $($(box).parent()).before(drop);</div><div class="line">        &#125;</div><div class="line">      &#125;</div><div class="line">    <span class="comment">//判断当前位置在页面效果内，且不在某个布局上方，布局示意添加在页面效果最后</span></div><div class="line">    &#125; <span class="keyword">else</span> <span class="keyword">if</span> ($(box).attr(<span class="string">'id'</span>) == <span class="string">"box"</span>) &#123;</div><div class="line">      <span class="keyword">if</span> ($(target).attr(<span class="string">'class'</span>) == <span class="string">"move-layout"</span> || $(target).attr(<span class="string">'class'</span>) == <span class="string">"move-layout-over"</span>) &#123;</div><div class="line">        $(target).removeClass(<span class="string">"move-layout"</span>).addClass(<span class="string">"move-layout-over"</span>);</div><div class="line">        <span class="keyword">if</span> (dropping == <span class="literal">false</span>) &#123;</div><div class="line">          drop = $(<span class="string">"&lt;div class='drop-layout'&gt;&lt;/div&gt;"</span>);</div><div class="line">          moveDrop();</div><div class="line">          $(<span class="string">"#box-content"</span>).append(drop);</div><div class="line">          dropping = <span class="literal">true</span>;</div><div class="line">        &#125; <span class="keyword">else</span> &#123;</div><div class="line">          $(drop).remove();</div><div class="line">          moveDrop();</div><div class="line">          $(<span class="string">"#box-content"</span>).append(drop);</div><div class="line">        &#125;</div><div class="line">      &#125;</div><div class="line">    <span class="comment">//判断当前位置不在页面效果内，移除布局示意</span></div><div class="line">    &#125; <span class="keyword">else</span> &#123;</div><div class="line">      <span class="keyword">if</span> ($(target).attr(<span class="string">'class'</span>) == <span class="string">"move-layout-over"</span>) &#123;</div><div class="line">        $(target).removeClass(<span class="string">"move-layout-over"</span>).addClass(<span class="string">"move-layout"</span>);</div><div class="line">      &#125;</div><div class="line">      <span class="keyword">if</span> (dropping == <span class="literal">true</span>) &#123;</div><div class="line">        $(drop).remove();</div><div class="line">        dropping = <span class="literal">false</span>;</div><div class="line">      &#125;</div><div class="line">    &#125;</div><div class="line">  &#125;</div><div class="line">  <span class="keyword">return</span> <span class="literal">false</span>;</div><div class="line">&#125;);</div></pre></td></tr></table></figure>
<h2 id="绑定鼠标左键松开事件"><a href="#绑定鼠标左键松开事件" class="headerlink" title="绑定鼠标左键松开事件"></a>绑定鼠标左键松开事件</h2><hr>
<h3 id="效果事件"><a href="#效果事件" class="headerlink" title="效果事件"></a>效果事件</h3><ul>
<li>当前拖动的对象为布局，且当前鼠标位置是否在页面效果内，添加布局</li>
<li>当前拖动的对象为控件，且当前鼠标位置是否在页面效果内某个布局上方，且该布局内无其他控件，添加控件至布局</li>
<li>当前鼠标位置不在页面效果内，移除拖动的对象</li>
</ul>
<h3 id="需要进行的判断-1"><a href="#需要进行的判断-1" class="headerlink" title="需要进行的判断"></a>需要进行的判断</h3><ul>
<li>是否有正在拖动的布局或者控件</li>
<li>当前鼠标位置是否在页面效果内</li>
<li>当前拖动的对象是否为布局，且当前鼠标位置是否在页面效果内</li>
<li>当前拖动的对象是否为控件，且当前鼠标位置是否在页面效果内某个布局上方，该布局是否为空</li>
<li>全局绑定鼠标左键松开事件</li>
</ul>
<figure class="highlight javascript"><table><tr><td class="gutter"><pre><div class="line">1</div><div class="line">2</div><div class="line">3</div><div class="line">4</div><div class="line">5</div><div class="line">6</div><div class="line">7</div><div class="line">8</div><div class="line">9</div><div class="line">10</div><div class="line">11</div><div class="line">12</div><div class="line">13</div><div class="line">14</div><div class="line">15</div><div class="line">16</div><div class="line">17</div><div class="line">18</div><div class="line">19</div><div class="line">20</div><div class="line">21</div><div class="line">22</div><div class="line">23</div><div class="line">24</div><div class="line">25</div><div class="line">26</div><div class="line">27</div><div class="line">28</div><div class="line">29</div><div class="line">30</div><div class="line">31</div><div class="line">32</div><div class="line">33</div><div class="line">34</div><div class="line">35</div><div class="line">36</div><div class="line">37</div></pre></td><td class="code"><pre><div class="line">$(<span class="built_in">document</span>).mouseup(<span class="function"><span class="keyword">function</span>(<span class="params">e</span>) </span>&#123;</div><div class="line">  <span class="comment">//定位当前事件位置</span></div><div class="line">  position_box(e);</div><div class="line">  e.cancelBubble = <span class="literal">true</span>;</div><div class="line">  <span class="comment">//判断是否有正在拖动的布局或者控件</span></div><div class="line">  <span class="keyword">if</span> (dragging == <span class="literal">true</span>) &#123;</div><div class="line">    <span class="comment">//当前位置为页面效果内的某个布局上方，添加布局或者添加控件</span></div><div class="line">    <span class="keyword">if</span> (($(box).attr(<span class="string">'data-type'</span>) == <span class="string">"layout"</span> &amp;&amp; $(box).parent().attr(<span class="string">'class'</span>) == <span class="string">"float-layout"</span>) || ($(box).attr(<span class="string">'data-type'</span>) == <span class="string">"layout"</span> &amp;&amp; $(box).parent().attr(<span class="string">'data-type'</span>) == <span class="string">"layout"</span>)) &#123;</div><div class="line">      <span class="keyword">if</span> ($(target).attr(<span class="string">'class'</span>) == <span class="string">"move-target"</span> &amp;&amp; $(box).children().length == <span class="number">0</span>) &#123;</div><div class="line">        $(target).removeClass(<span class="string">"move-target"</span>).addClass(<span class="string">"float-target"</span>);</div><div class="line">        $(target).children(<span class="string">".header, .footer, .nav, .listview-l, .listview-s, .content, .slider-7, .slider-8, .slider-9"</span>).css(<span class="string">"height"</span>, <span class="string">"100%"</span>);</div><div class="line">        $(box).append(target);</div><div class="line">      &#125; <span class="keyword">else</span> <span class="keyword">if</span> ($(target).attr(<span class="string">'class'</span>) == <span class="string">"move-layout-over"</span>) &#123;</div><div class="line">        <span class="keyword">if</span> (dropping) &#123;</div><div class="line">          $(target).removeClass(<span class="string">"move-layout-over"</span>).addClass(<span class="string">"float-layout"</span>);</div><div class="line">          $(drop).before($(target));</div><div class="line">        &#125;</div><div class="line">      &#125; <span class="keyword">else</span> $(target).remove();</div><div class="line">    <span class="comment">//当前位置为页面效果内，添加布局</span></div><div class="line">    &#125; <span class="keyword">else</span> <span class="keyword">if</span> ($(box).attr(<span class="string">'id'</span>) == <span class="string">"box"</span>) &#123;</div><div class="line">      <span class="keyword">if</span> ($(target).attr(<span class="string">'class'</span>) == <span class="string">"move-layout-over"</span>) &#123;</div><div class="line">        <span class="keyword">if</span> (dropping) &#123;</div><div class="line">          $(target).removeClass(<span class="string">"move-layout-over"</span>).addClass(<span class="string">"float-layout"</span>);</div><div class="line">          $(drop).before($(target));</div><div class="line">        &#125;</div><div class="line">      &#125; <span class="keyword">else</span> &#123;</div><div class="line">        $(target).remove();</div><div class="line">      &#125;</div><div class="line">    <span class="comment">//当前鼠标位置不在页面效果内，移除拖动的对象</span></div><div class="line">    &#125; <span class="keyword">else</span> &#123;</div><div class="line">      $(target).remove();</div><div class="line">    &#125;</div><div class="line">  &#125;</div><div class="line">  $(drop).remove();</div><div class="line">  dropping = <span class="literal">false</span>;</div><div class="line">  dragging = <span class="literal">false</span>;</div><div class="line">&#125;);</div></pre></td></tr></table></figure>
<h2 id="完善后续处理"><a href="#完善后续处理" class="headerlink" title="完善后续处理"></a>完善后续处理</h2><hr>
<ul>
<li>编辑控件样式<ul>
<li>在页面效果内的控件可进行编辑（改变颜色、内容等）</li>
</ul>
</li>
<li>保存页面效果<ul>
<li>这里为了偷懒直接把整个html导出，将它导出保存到html页面内，并加载相应的样式</li>
<li>当然为了数据处理的方便，你也可以将这一切都转成数据保存到数据库，提取的时候进行相关处理就好了</li>
</ul>
</li>
</ul>
<h2 id="结束语"><a href="#结束语" class="headerlink" title="结束语"></a>结束语</h2><hr>
<p>有时候写些有意思的项目也是很不错的，脑洞要大大的，当然事后别忘了优化哦。</p>
  
		
		<p style="margin-top:50px;">
			查看Github有更多内容噢：<a href="https://github.com/godbasin">https://github.com/godbasin</a>
			<br>
			更欢迎来<a href="https://godbasin.github.io/front-end-playground">被删的前端游乐场</a>边撸猫边学前端噢
		</p>
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	<img src="https://github-imglib-1255459943.cos.ap-chengdu.myqcloud.com/2code2.jpg" width="200" height="200" style="display:block;margin: 0 auto;" />
	<p style="text-align: center;margin-top: 10px;margin-bottom: 20px;">码生艰难，写文不易，给我家猪囤点猫粮了喵~</p>
	<div class="author-right">
  		<p>作者：被删</p>
  		<p>出处：<a href="https://godbasin.github.io">https://godbasin.github.io</a></p>
  		<p>本文版权归作者所有，欢迎转载，但未经作者同意必须保留此段声明，且在文章页面明显位置给出原文连接，否则保留追究法律责任的权利。</p>
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  <ol class="toc"><li class="toc-item toc-level-2"><a class="toc-link" href="#基本页面搭建"><span class="toc-number">1.</span> <span class="toc-text">基本页面搭建</span></a></li><li class="toc-item toc-level-2"><a class="toc-link" href="#绑定鼠标左键按下事件"><span class="toc-number">2.</span> <span class="toc-text">绑定鼠标左键按下事件</span></a><ol class="toc-child"><li class="toc-item toc-level-3"><a class="toc-link" href="#需要进行绑定的对象"><span class="toc-number">2.1.</span> <span class="toc-text">需要进行绑定的对象</span></a></li><li class="toc-item toc-level-3"><a class="toc-link" href="#点击对象后进行处理"><span class="toc-number">2.2.</span> <span class="toc-text">点击对象后进行处理</span></a></li><li class="toc-item toc-level-3"><a class="toc-link" href="#若对象位于页面效果内，进行相关处理"><span class="toc-number">2.3.</span> <span class="toc-text">若对象位于页面效果内，进行相关处理</span></a></li></ol></li><li class="toc-item toc-level-2"><a class="toc-link" href="#定位当前位置是否有特定元素"><span class="toc-number">3.</span> <span class="toc-text">定位当前位置是否有特定元素</span></a></li><li class="toc-item toc-level-2"><a class="toc-link" href="#绑定鼠标移动事件"><span class="toc-number">4.</span> <span class="toc-text">绑定鼠标移动事件</span></a><ol class="toc-child"><li class="toc-item toc-level-3"><a class="toc-link" href="#需要进行的判断"><span class="toc-number">4.1.</span> <span class="toc-text">需要进行的判断</span></a></li></ol></li><li class="toc-item toc-level-2"><a class="toc-link" href="#绑定鼠标左键松开事件"><span class="toc-number">5.</span> <span class="toc-text">绑定鼠标左键松开事件</span></a><ol class="toc-child"><li class="toc-item toc-level-3"><a class="toc-link" href="#效果事件"><span class="toc-number">5.1.</span> <span class="toc-text">效果事件</span></a></li><li class="toc-item toc-level-3"><a class="toc-link" href="#需要进行的判断-1"><span class="toc-number">5.2.</span> <span class="toc-text">需要进行的判断</span></a></li></ol></li><li class="toc-item toc-level-2"><a class="toc-link" href="#完善后续处理"><span class="toc-number">6.</span> <span class="toc-text">完善后续处理</span></a></li><li class="toc-item toc-level-2"><a class="toc-link" href="#结束语"><span class="toc-number">7.</span> <span class="toc-text">结束语</span></a></li></ol>
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